Pulverizer.



No. 812,231 PATENTBD FEB. 18, i906. G. RAYMOND & J. H. FINLAY.

' PULVERIZER.

APPLICATION FILED JULY 26. 1902. RENEWED MAY 31,1905.

3 SHEETS-SHEET 1 Fir-I155 lnvemmrs George Pagmund JUhTI H.

wiinesses u'pmw 1 PATENTED FEB. 13, 1906. G. RAYMOND & J. H. FINLAY.

PULVERIZER. APPLICATION FILED JULY 26. 1902. RENEWED MAY 31,1905.

3 SHEETS-SHEET 2.

d s M 5 m. .m P. r m mm mm H M H E H E V UITH n m w E M a N E J 5 Y 5 w M m M 7 J No. 812,231. PATBNTED FEB. 13, 1906 G. RAYMOND & J. H. PINLAY.

PULVERIZBR.

APPLICATION EILED JULY 26, 1902. RENEWED MAY 31,1905.

- a SHBETSSHEET a UNIED STATES PATET @FFKQ.

GEORGE RAYMOND, OF CHICAGO, AND JOHN H. FENLAY, OF WARSAW. lLLINOli.

PULVEFKIZEHQ Specification of Letters Patent.

?atented Feb. 18, 1906.

To all whom it may concern: I

Be it known that we, Gnononlitkmonn, residing at Chicago, in the count of Cook, and JOHN H. FINLAY, residing at arsaw, in the county of Hancock, State of Illinois, citizens of the United States, have invented a certain new and useful Improvement in Pulverizers, (Case No. 2,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

Our invention relates to pulverizers or crushing machinery, and particularly to that class of pulverizing machinery which emplovs the principle of gravity in con'unc tion with other forces to effect the desire im met upon the material to be pulverized or crushed.

In general the object of our'invention is to provide a machine of improved simplicity ol construction and ease of operation, whereby the general efficiency thereof may be improved.

in accordance with our invention we provide a rotating shaft, upon which are mounted one or more sections of a drum, near the peripherv ol which there are pockets adapted to contain the material to be pulverized and suitable weights for effecting the impact which is to pulverize said material. that provide a casing for said drum in which there are openings, through which openings the material to be operated upon may pass. The pockets and openings are preferably so formed and placed that the material will pass through the openings due to the attraction of gravity when the said pockets reach the lower position of their rotation. provided which surrounds the casing and rotates therewith and through which the material passes when it has reached the-desired degree of pulverization. The material which I does not pass through the screen is carried around with the same to an upper point vin the revolutionof the drum, where it rc nters the pockets through the openings in the cusing, where it may be again acted upon by the impact of the weights within the pockets. It is desirable to further rovide some means of feeding material into t 0 machine and to further provide an inclosing housing, to prcvcnt the escape of dust and to catch the pulverized material dropping through the screen.

@ur invention will be best understood by ed in bearings 6 6.

'ets l0 ii).

A screen is,

reference to the accompanying drawings,,in Which- Figure l is a front elevation, parts dieing broken away to show the interior mechanism. Fig. 2 is a vert cal longitudinal sec tion taken on line 2 of Fig. 3, and, Fig. 3 is a cross-sectional view taken on line 3 3 of Fig.2.

Like parts are indicated by similar characters of reference throughout the different figures.

W'e have shown a main shaft 1, driven hv the gear 2 and its associated pinion 3, which is connected, by means of the counter-shaft 4, with the pulley 5, these shafts being support Upon the shaft 1 are keyed the hub-sections 7 7, which carry the sections 88 of the rotating drum. Any desired number of these sections maybe mounted upon the shaft. In Fig. 1 we ave shown a mill in which there arefour such sections,

while in the other two figures there are but two such sections shown. These sections arc securely fastened'to the hub, preferably by means of the wooden wedges 9 9. there is more than onesection mounted upon the sr we shaft,,it is desirable that the sections should be displaced angularly about the shaft 1, so that the impact due to thefalling weights will not occur in unison, as will be hereinafter more fully understood. Near the periphery of the sections 8, forming the drum, are provided irregularly-shaped pock- In the present form of our invention we have shown spherical balls 11 11, adapted to tumble in said pockets. It will, however, be understood that any form or shape of weight may replace the said balls. When balls are uscdus the tumblers,,we find it desirable to provide a central ridge 12 in each of the pockets. The pockets in each section of the drum are further provided with end walls 13 123, which, together with the ccntral ridges 12, form raceways in the pockets, one for each ball, which serve to guide and partially control the rolling and tumbling motion thereof.

A desirable cross-sectional shape for the pockets is best illustrated in Fig. 3, and the rotation of the drum being in the direction shown bythe arrow 14 the movement of the balls within their pockets is well illustrated in said figure. Upon the right-hand side where the ball is being elevated due to the v When I point in its rotation.

power sup lied to the mill-tit will be seen that thje=bi1liro ls down the incline 15 to a. position in the socket '16 near theaxis of rotation. The bell is heldwithinthis socket- 16 until it reaches a point slightl [beyond the highest hebell then rolls out of its elevatingsocket and rolls or dro s to the mortar portion 17 oi the pocket. ponreachirig'the lower part of the revolution the further ball rolls from the mortar; and it is then car- "ried by the cesin 18until it again rolls into the eleveting-socl ietv This casing 18 is preferably madeof boiler-plate and forms e shell tightly fitting about the entire rotating drum and rotating therewith. This casing 18 is provided with'openings 19 19-, communicat ingith the interior of the-pockets 10, end is ilrovided with prO ectingscOops 2Q 7 20, Wlii as will be hereinafter more'fiiily explained, ere' edepte'd to disect material through the openings into the pockets. End plates 21 21 are bolted to. the end sections of the drlim end are provided with flanges 22 22, to Whichissecured the cylindrical screen 23. We find it desirable to make theseid screen in sections, as best illustrated in Fig. 3 these sections being fastened toconnecting-hers 2e,

the'verioussections bein held together by the bolts 25. One or bot of the end pistes o ening 26 9 invention we ingc.

prefers lyof sheet metefiincloses the 11313 as sh i 21 ere-desirebly d-ished and provided with en through which materiel line-y be the present embodiment oi"? our have shown it hopper 27 have circular'rim .28 which fits ithin the 2610i the on plate. i liousin 29',

erged.

openin The operation of our improved new hecome spperent. The material to be fiulverizeci is cnerged into the hopper 27 and passes, 'throu 'h the ogening in the e'nd piste end thence through t e openings 89 3G in the end walls of the pockets 10 10. The drum rotetirggii 1 A it will with its inclosin' e asing and screen in the direction s own by the error.

be seen that the material enters the pockets screen it wil dro screen-to the openings in the casing. As the pocket passes over the upper center the foeteriel will drop to the mortar l7, Where'it at once becomes subiect to the impsct'of the falling ball discher ed from the pocket 16. Upon ap reaching t e lower point inits revolution t e materiel is again discharged through the'openings in the incicsing casing to a position upon the sockets in with the screen 23, when the cfvcle of operations is again repeeted. When .the material or any of t becomes sufliciently' oulverized, it"'drops through the meshes of from which it may .be removed in any suitthe screen end is ceughtwithin thehousing',

eble inclines- It will be seen that the open:

ings 30in the end walls of the various sections come into partial registeryss shown in Fig. 3, thus serving-to permit the pesse e, of the material iromthe end section to t ose sections neerthe middle ofthe machine; but this longitudmelf'distrlbution oi the metefisiis also effectively brought about by its alter netedischerge upon thescreen 23 end reed mission to the pockets 10.

- it will he apparent-that our machine coin barrel principie of pulverizetion Withmany advantages not heretofore incorporated in puiveiizingmiills. We find that e mili of our improved. construction will nulverize t given 'bines all the advantages ofthe tumbiing I I quentit of material iir'econ pemtweiy short space 0 time and with e-coniigsretively sins-llsupply of OWQZZ, for the reason that the tumblers are e eveted to their uppermost "position While reietiveiy near the axis of rotation, thereby requiring a proportioneteiy sineil turning moment, the turning" moment re quired m elevate the said. tumblers-being very isrgeiy supplied if theinoment caused by the impact of the illing tumblers upon the niorter, which is pieced miss the periphery of the drum.

the inc-losing casing the gnieteriel to be pul verized'is effeetiveiy sepereted from the tum? hiers e'tisll noints of the revolution except tlistet which the was materiel is ed'vsntegeousiy acted upon by tile tumblers. 1 There is s iurtheivedventege in that e eom'perstively s'meii qnsntity of meterisi is necessary to he carried in the drum of the imii in order to edventsgeouslyntilise'the full ffirlfiflf the inipect of the failingtnmblers;nesrlyeil ofthe reeteriel caused bythe drum being acted 'ecteci uponduringyeech revolution. J v

. While We have herein shown and parties.

leriy describedoneemlaodiment of our inven tion, ii-Will be apparent tlietsouc invention msy be advantageouslyapplied to other com structions, end we do not; therefore, Wish to.

limit ourselves to the precise disclosure here-- heving described our nvention, wepcienn as new and desire to sccureby Letters ent- 1. in e nulverizing-mill tiie oombinstion e rotating drum having packets, ofpe ripherel openings in seid pockets peripheral scoopsede )ted to guide materiei to said openings, tu-mb ers confined within said pockets, and a screen surrounding said drum and ro -tetmg therewith, substentimiy as described,

in pkiiVOZ'iZiIlg-iIii.ii, the combinutioe Furthermore, by the use of the drum and the openings in reg,

a with a'fotatirigdrur'moi' poeketsin said drum, peripheral openinfisfin said pockets, tumbler lotion and wit I ,of said tumblers, and a cylindrical screen sur- I J lution'and with balls confined wit 'u said pockets, said pools ets being providedwith inclines 15 and sockets lfi, whereby sa-idballs are carried in said sockets durin' theupwafd part of their revoaoeways to guide the motion I roundingsaid drum and rotating therewith,

substantially as described. I

In a-pulveriZing-mill, the combination 2' with a rotating drum, oipoe'ketsin said drum, peripheral openinqs in said-pockets, tumblerj balls confined ,vvitbiasaid pockets, said poekets being provided with inclines 15 and soek- -et-s 16 whereb said balls are carrie in said E ookets duri'n the upward part of their revoraceways to gulde thG IIIOiLIOII 5 of said tumblers,- zteylmdrrcal screen suri rounding said drum and rotatin 'therewith;

andsooops adapted to guide mat erial to said openings, substantially as deserib'ecl. i

4. In a pulverizing-rnilhthe combination with hub portions 7 of similandrum sections I 8, prov1ded with pockets 10, said drunrsec tions beingwlisplaoed.angularly, and tumblers confined Within said pockets, substan 8, provided -with pockets-10, said drum- Y sections being displaced angularly, wooden wedges whereby sald-drum-sections are keyed to said hub portions and tumblers con-- fined within said pockets, substantially as described.

In witness whereof We hereunto'subseribe our names this 24th day of July A. D. 1902.

GEORGE- RAYMOND. 7 JOHN H. FINLAY. Witnesses:

GEORGE L. CBAGG, HARVEY L. HANSON. 

